The answer you are looking for is "cardiac sphincter".
Answer:
Because the earth is spherical, the position of Polaris relative to the horizon depends on the location of the observer. Consequently, the angle between the northern horizon and Polaris is equal to the observer's latitude.
Answer:
Reasons for the expected population growth include increase in the number of young unmarried mothers, high fertility rates for some ethnic groups, and inadequate sexual education and birth control provision.
Explanation: